Full Text:   <2299>

Summary:  <2065>

CLC number: TP274

On-line Access: 2014-12-23

Received: 2014-04-15

Revision Accepted: 2014-11-04

Crosschecked: 2014-12-17

Cited: 4

Clicked: 6815

Citations:  Bibtex RefMan EndNote GB/T7714


Yu-jing WU


Jin-Gyun CHUNG


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Frontiers of Information Technology & Electronic Engineering  2015 Vol.16 No.1 P.70-78


Efficient controller area network data compression for automobile applications

Author(s):  Yu-jing Wu, Jin-Gyun Chung

Affiliation(s):  Division of Electronics & Information Engineering, Chonbuk National University, Jeonju 561-756, Korea

Corresponding email(s):   yjwu@jbnu.ac.kr, jgchung@jbnu.ac.kr

Key Words:  Controller area network (CAN), Electronic control units (ECUs), Data compression, Signal rearrangement

Yu-jing Wu, Jin-Gyun Chung. Efficient controller area network data compression for automobile applications[J]. Frontiers of Information Technology & Electronic Engineering, 2015, 16(1): 70-78.

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Controller area networks (CANs) have been designed for multiplexing communication between electronic control units (ECUs) in vehicles and many high-level industrial control applications. When a CAN bus is overloaded by a large number of ECUs connected to it, both the waiting time and the error probability of the data transmission are increased. Thus, it is desirable to reduce the CAN frame length, since the duration of data transmission is proportional to the frame length. In this paper, we present a CAN message compression method to reduce the CAN frame length. Experimental results indicate that CAN transmission data can be compressed by up to 81.06% with the proposed method. By using an embedded test board, we show that 64-bit engine management system (EMS) CAN data compression can be performed within 0.16 ms; consequently, the proposed algorithm can be successfully used in automobile applications.

In this paper the authors present a compression mechanism to reduce the size of CAN messages, by comparing the payload of current and previous messages, and sending only the difference, instead of the absolute value. The paper identifies a clear task 'Data Compression', shows in a good manner the whole situation, the assumptions, former solutions and derives in a clear way the advantages of the proposed solution.


目的:控制器局域网CAN(controller area network)被设计作为汽车环境和高级工业控制应用中电子控制单元ECUs(electronic control units)之间的多路通讯。如果大量ECUs连接到CAN总线,会导致CAN总线陷入超载状态,待命时间和数据传输误差率也将增加。数据传输时间和帧长度成正比,因此需要减少CAN总线的数据帧长度。


Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article


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[12]Wu, Y.J., Chung, J.G., Sunwoo, M.H., 2014. Design and implementation of CAN data compression algorithm. Proc. IEEE Int. Symp. on Circuits and Systems, p.582-585.

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